043
FZUS51 KBOX 181104
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
703 AM EDT SUN OCT 18 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-190000-
703 AM EDT SUN OCT 18 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES CONTINUES TO BUILD OVER THE WATERS TODAY. A LOW PRES OFF
THE MID ATLC COAST SHOULD LINGER THERE THROUGH THU. THE WORST
IMPACTS FROM THIS STORM MAY REMAIN S OF OUR WATERS, BUT GUSTY NE
WINDS AND ROUGH SEAS ARE STILL EXPECTED, ESPECIALLY ACROSS THE SRN
WATERS.
ANZ250-190000-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
703 AM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY
NE WINDS 10 TO 15 KT, BECOMING N AROUND 5 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND
SE 1 FOOT AT 8 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
2 FT AT 5 SECONDS AND NW 1 FOOT AT 3 SECONDS.
MON
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO 5 FT
IN THE AFTERNOON. WAVE DETAIL: E 3 FT AT 9 SECONDS AND E 2 FT AT
6 SECONDS, BECOMING E 4 FT AT 9 SECONDS AND E 3 FT AT 6 SECONDS.
MON NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 5 TO 7 FT, BUILDING TO
6 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: SE 7 FT AT 10 SECONDS AND
E 2 FT AT 7 SECONDS, BECOMING E 8 FT AT 11 SECONDS AND N 3 FT AT
4 SECONDS.
TUE AND TUE NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 7 TO 9 FT. WAVE DETAIL: E 9 FT AT 10 SECONDS AND NE 6 FT AT
7 SECONDS.
WED THROUGH THU NIGHT
N WINDS 20 TO 25 KT WITH GUSTS UP TO
30 KT. SEAS 7 TO 10 FT. WAVE DETAIL: E 9 FT AT 9 SECONDS AND N
8 FT AT 5 SECONDS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-190000-
MASSACHUSETTS BAY AND IPSWICH BAY-
703 AM EDT SUN OCT 18 2026
TODAY
N WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT THIS
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND
SE 1 FOOT AT 9 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
NW 1 FOOT AT 2 SECONDS AND NE 1 FOOT AT 5 SECONDS.
MON
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 10 SECONDS AND E 2 FT AT 5 SECONDS.
MON NIGHT
NE WINDS 10 TO 15 KT, BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: E 6 FT
AT 10 SECONDS AND N 5 FT AT 4 SECONDS.
TUE AND TUE NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: E 7 FT AT 10 SECONDS AND N 6 FT AT
5 SECONDS.
WED THROUGH THU NIGHT
N WINDS 25 TO 30 KT. SEAS 5 TO 8 FT.
WAVE DETAIL: N 8 FT AT 6 SECONDS AND E 8 FT AT 9 SECONDS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-190000-
CAPE COD BAY-
703 AM EDT SUN OCT 18 2026
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING
TO 5 TO 10 KT THIS AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT
AT 6 SECONDS AND SE 1 FOOT AT 9 SECONDS.
TONIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
2 FT AT 4 SECONDS AND SE 1 FOOT AT 11 SECONDS.
MON
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: E 2 FT AT 10 SECONDS AND NE 1 FOOT AT
4 SECONDS.
MON NIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: N
4 FT AT 4 SECONDS AND E 4 FT AT 10 SECONDS.
TUE
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: N 5 FT AT 5 SECONDS AND E 5 FT AT 10 SECONDS.
TUE NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
4 TO 6 FT. WAVE DETAIL: N 6 FT AT 5 SECONDS AND E 5 FT AT
9 SECONDS.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO
6 FT.
WED NIGHT AND THU
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-190000-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
703 AM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH WEDNESDAY
MORNING...
TODAY
NE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT THIS
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: N 5 FT
AT 7 SECONDS AND SE 1 FOOT AT 8 SECONDS.
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: E 4 FT AT 7 SECONDS AND N 2 FT AT 5 SECONDS.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: E 7 FT AT 9 SECONDS AND E 5 FT AT 6 SECONDS.
MON NIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 8 TO 11 FT. WAVE DETAIL: E 10 FT AT
10 SECONDS AND N 4 FT AT 4 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 8 TO
11 FT. WAVE DETAIL: E 10 FT AT 10 SECONDS AND N 7 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
TUE NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
9 TO 12 FT. WAVE DETAIL: E 11 FT AT 9 SECONDS AND NE 8 FT AT
7 SECONDS.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 9 TO
13 FT.
WED NIGHT AND THU
NE WINDS 25 TO 30 KT, BECOMING N 20 TO
25 KT. SEAS 9 TO 13 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
7 TO 10 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-190000-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
703 AM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH WEDNESDAY
MORNING...
TODAY
NE WINDS 20 TO 25 KT, DIMINISHING TO 10 TO 15 KT THIS
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: N 5 FT AT 5 SECONDS AND
SE 1 FOOT AT 8 SECONDS.
TONIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: E 4 FT AT 6 SECONDS AND E 3 FT AT 9 SECONDS.
MON
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT, BUILDING TO 5 TO 8 FT IN THE AFTERNOON. WAVE DETAIL: E 6 FT
AT 8 SECONDS AND N 1 FOOT AT 6 SECONDS, BECOMING E 8 FT AT
9 SECONDS AND NE 3 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE
AFTERNOON.
MON NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
6 TO 9 FT, BUILDING TO 8 TO 11 FT AFTER MIDNIGHT. WAVE DETAIL: E
9 FT AT 11 SECONDS AND NE 5 FT AT 5 SECONDS, BECOMING E 9 FT AT
11 SECONDS AND N 7 FT AT 5 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS AROUND 30 KT WITH GUSTS UP TO 35 KT. SEAS 8 TO
11 FT. WAVE DETAIL: E 9 FT AT 10 SECONDS AND N 7 FT AT 6 SECONDS.
A CHANCE OF SHOWERS IN THE MORNING.
TUE NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
8 TO 11 FT. WAVE DETAIL: E 11 FT AT 9 SECONDS AND N 8 FT AT
6 SECONDS.
WED AND WED NIGHT
NE WINDS 30 TO 35 KT, BECOMING 25 TO 35 KT.
SEAS 9 TO 13 FT. A CHANCE OF SHOWERS.
THU
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 8 TO
11 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 25 TO 35 KT. SEAS 7 TO 10 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-190000-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
703 AM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH WEDNESDAY
MORNING...
TODAY
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, DIMINISHING
TO 10 TO 15 KT THIS AFTERNOON. SEAS 3 TO 5 FT, SUBSIDING TO 2 TO
3 FT THIS AFTERNOON. WAVE DETAIL: N 4 FT AT 5 SECONDS AND SE
1 FOOT AT 8 SECONDS, BECOMING N 3 FT AT 5 SECONDS AND SE 1 FOOT
AT 8 SECONDS.
TONIGHT
E WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS AND N
1 FOOT AT 5 SECONDS.
MON
NE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT, BUILDING TO 5 TO
8 FT IN THE AFTERNOON. WAVE DETAIL: E 6 FT AT 8 SECONDS AND N
1 FOOT AT 3 SECONDS, BECOMING E 8 FT AT 10 SECONDS AND NE 5 FT AT
7 SECONDS.
MON NIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 8 TO 11 FT. WAVE DETAIL: E 10 FT AT
12 SECONDS AND N 6 FT AT 6 SECONDS.
TUE AND TUE NIGHT
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT.
SEAS 8 TO 11 FT. WAVE DETAIL: E 11 FT AT 9 SECONDS AND N 7 FT AT
6 SECONDS.
WED
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 9 TO
13 FT. WAVE DETAIL: E 11 FT AT 9 SECONDS AND N 7 FT AT 6 SECONDS.
WED NIGHT AND THU
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 9 TO 12 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
7 TO 10 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-190000-
NANTUCKET SOUND-
703 AM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY
NE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND
SE 1 FOOT AT 8 SECONDS.
TONIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 5 SECONDS AND E 1 FOOT AT
9 SECONDS.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS AND NE 3 FT AT 5 SECONDS.
MON NIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: N 5 FT AT 5 SECONDS
AND E 4 FT AT 10 SECONDS. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: N 6 FT AT 5 SECONDS AND E 4 FT AT
10 SECONDS.
WED
NE WINDS 25 TO 35 KT. SEAS 5 TO 7 FT. WAVE DETAIL: N 6 FT
AT 5 SECONDS AND E 5 FT AT 9 SECONDS.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
5 TO 7 FT. A CHANCE OF SHOWERS.
THU
N WINDS 25 TO 30 KT. SEAS 4 TO 6 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-190000-
VINEYARD SOUND-
703 AM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS MORNING.
SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND NW 1 FOOT
AT 6 SECONDS.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 1 FOOT OR LESS, THEN AROUND
2 FT AFTER MIDNIGHT. WAVE DETAIL: NE 1 FOOT AT 4 SECONDS AND SE
1 FOOT AT 11 SECONDS, BECOMING NE 1 FOOT AT 4 SECONDS AND SE
1 FOOT AT 9 SECONDS.
MON
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE
2 FT AT 4 SECONDS AND E 1 FOOT AT 11 SECONDS.
MON NIGHT
NE WINDS 15 TO 20 KT, BECOMING N 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: N 4 FT
AT 5 SECONDS AND SE 3 FT AT 12 SECONDS.
TUE AND TUE NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: N 5 FT AT 5 SECONDS AND SE 2 FT AT
10 SECONDS.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO
6 FT. WAVE DETAIL: NE 5 FT AT 6 SECONDS AND E 2 FT AT 10 SECONDS.
WED NIGHT AND THU
NE WINDS 25 TO 30 KT, BECOMING N 20 TO
25 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-190000-
BUZZARDS BAY-
703 AM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING NE
5 TO 10 KT THIS AFTERNOON. SEAS AROUND 2 FT THIS MORNING, THEN
1 FOOT OR LESS. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND NW 1 FOOT
AT 7 SECONDS, BECOMING N 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
7 SECONDS.
TONIGHT
E WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL:
NE 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 13 SECONDS.
MON
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 2 FT
AT 4 SECONDS AND SE 2 FT AT 18 SECONDS.
MON NIGHT
NE WINDS 15 TO 20 KT, BECOMING N 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT
AT 5 SECONDS AND SE 2 FT AT 13 SECONDS.
TUE AND TUE NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: N 5 FT AT 5 SECONDS AND SE 2 FT AT
8 SECONDS.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO
6 FT. WAVE DETAIL: N 5 FT AT 5 SECONDS AND E 2 FT AT 10 SECONDS.
WED NIGHT AND THU
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 20 TO 25 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-190000-
RHODE ISLAND SOUND-
703 AM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY
NE WINDS 15 TO 20 KT, DIMINISHING TO 5 TO 10 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND S
1 FOOT AT 8 SECONDS.
TONIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 9 SECONDS.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 5 FT AT 11 SECONDS AND NE 4 FT AT
4 SECONDS.
MON NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SE 7 FT AT 12 SECONDS AND N 5 FT AT
5 SECONDS.
TUE AND TUE NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: SE 7 FT AT 11 SECONDS AND N 6 FT AT
5 SECONDS.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO
8 FT. WAVE DETAIL: N 6 FT AT 6 SECONDS AND SE 5 FT AT 9 SECONDS.
WED NIGHT AND THU
NE WINDS 25 TO 30 KT, BECOMING N 20 TO
25 KT. SEAS 5 TO 7 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-190000-
BLOCK ISLAND SOUND-
703 AM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY
NE WINDS 15 TO 20 KT, DIMINISHING TO 5 TO 10 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND
SE 1 FOOT AT 8 SECONDS.
TONIGHT
E WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT WITH GUSTS
UP TO 20 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: NE
2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
MON
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE
5 FT AT 10 SECONDS AND E 4 FT AT 6 SECONDS.
MON NIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 8 FT. WAVE DETAIL:
SE 8 FT AT 12 SECONDS AND N 4 FT AT 5 SECONDS.
TUE AND TUE NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 5 TO 8 FT. WAVE DETAIL: E 8 FT AT 12 SECONDS AND N 5 FT AT
6 SECONDS.
WED
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO
8 FT. WAVE DETAIL: E 8 FT AT 9 SECONDS AND N 5 FT AT 6 SECONDS.
WED NIGHT AND THU
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 8 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-190000-
BOSTON HARBOR-
703 AM EDT SUN OCT 18 2026
TODAY
N WINDS 5 TO 10 KT, BECOMING NE THIS AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
SE WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
MON NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT.
TUE AND TUE NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
WAVES 2 TO 3 FT.
WED THROUGH THU NIGHT
N WINDS 20 TO 25 KT WITH GUSTS UP TO
30 KT. WAVES 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-190000-
NARRAGANSETT BAY-
703 AM EDT SUN OCT 18 2026
TODAY
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING NE
5 TO 10 KT THIS AFTERNOON. WAVES AROUND 2 FT THIS MORNING, THEN
1 FOOT OR LESS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
MON
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 2 TO 3 FT.
MON NIGHT
NE WINDS 10 TO 15 KT, BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT.
TUE AND TUE NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
WAVES 2 TO 3 FT.
WED
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. WAVES AROUND
3 FT.
WED NIGHT AND THU
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES
2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-190000-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
703 AM EDT SUN OCT 18 2026
TODAY
NE WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT THIS
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT AT 6 SECONDS AND S
1 FOOT AT 8 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 5 SECONDS AND NW 1 FOOT AT 3 SECONDS.
MON
E WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT, BUILDING TO 4 TO 6 FT IN THE
AFTERNOON. WAVE DETAIL: E 3 FT AT 6 SECONDS AND SE 3 FT AT
10 SECONDS, BECOMING SE 5 FT AT 9 SECONDS AND E 3 FT AT
6 SECONDS.
MON NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 6 TO 9 FT, BUILDING TO
8 TO 10 FT AFTER MIDNIGHT. WAVE DETAIL: SE 7 FT AT 11 SECONDS AND
NE 2 FT AT 4 SECONDS, BECOMING SE 9 FT AT 11 SECONDS AND N 2 FT
AT 4 SECONDS.
TUE AND TUE NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 8 TO 11 FT. WAVE DETAIL: E 10 FT AT 9 SECONDS AND N 7 FT AT
6 SECONDS.
WED
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 10 TO
11 FT. WAVE DETAIL: E 9 FT AT 9 SECONDS AND NE 6 FT AT 7 SECONDS.
WED NIGHT AND THU
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 8 TO 11 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
7 TO 9 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-190000-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
703 AM EDT SUN OCT 18 2026
...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH WEDNESDAY
MORNING...
TODAY
NE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT THIS
AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: N 7 FT AT 7 SECONDS AND S
1 FOOT AT 8 SECONDS.
TONIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: E 6 FT AT 8 SECONDS AND NW 2 FT AT 6 SECONDS.
MON
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT, BUILDING TO 8 TO 11 FT IN THE AFTERNOON. WAVE DETAIL: E
7 FT AT 8 SECONDS AND N 1 FOOT AT 4 SECONDS, BECOMING E 9 FT AT
10 SECONDS AND N 5 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN THE
AFTERNOON.
MON NIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 9 TO 13 FT, BUILDING TO 11 TO 13 FT AFTER
MIDNIGHT. WAVE DETAIL: E 11 FT AT 10 SECONDS AND NE 6 FT AT
6 SECONDS, BECOMING E 11 FT AT 10 SECONDS AND N 6 FT AT
5 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS 11 TO
14 FT. WAVE DETAIL: E 12 FT AT 10 SECONDS AND NE 8 FT AT
7 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS
11 TO 15 FT. WAVE DETAIL: NE 13 FT AT 9 SECONDS AND N 9 FT AT
8 SECONDS.
WED THROUGH THU
N WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
SEAS 12 TO 16 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
10 TO 12 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-190000-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
703 AM EDT SUN OCT 18 2026
...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH WEDNESDAY
MORNING...
TODAY
NE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT THIS
AFTERNOON. SEAS 5 TO 8 FT. WAVE DETAIL: N 8 FT AT 7 SECONDS AND
SE 1 FOOT AT 8 SECONDS.
TONIGHT
NE WINDS 15 TO 20 KT, BECOMING E 20 TO 25 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT, BUILDING TO 6 TO
9 FT AFTER MIDNIGHT. WAVE DETAIL: NE 6 FT AT 7 SECONDS AND E 3 FT
AT 12 SECONDS, BECOMING E 8 FT AT 8 SECONDS AND NE 6 FT AT
7 SECONDS.
MON
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT IN THE
AFTERNOON. SEAS 7 TO 10 FT, BUILDING TO 9 TO 13 FT IN THE
AFTERNOON. WAVE DETAIL: E 10 FT AT 8 SECONDS AND N 1 FOOT AT
6 SECONDS, BECOMING E 12 FT AT 10 SECONDS AND NE 7 FT AT
8 SECONDS. PATCHY FOG IN THE AFTERNOON. A CHANCE OF SHOWERS IN
THE AFTERNOON.
MON NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
10 TO 14 FT. WAVE DETAIL: E 13 FT AT 11 SECONDS AND NE 9 FT AT
8 SECONDS. SHOWERS LIKELY.
TUE
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 11 TO
14 FT. WAVE DETAIL: NE 14 FT AT 9 SECONDS AND N 9 FT AT
7 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS
12 TO 16 FT. WAVE DETAIL: NE 14 FT AT 9 SECONDS AND N 10 FT AT
7 SECONDS. A CHANCE OF SHOWERS.
WED THROUGH THU
N WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT.
SEAS 12 TO 17 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
11 TO 13 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-190000-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
703 AM EDT SUN OCT 18 2026
...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH WEDNESDAY
MORNING...
TODAY
NE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT THIS
AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: N 7 FT AT 6 SECONDS AND
SE 1 FOOT AT 8 SECONDS.
TONIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER
MIDNIGHT. SEAS 5 TO 7 FT. WAVE DETAIL: E 7 FT AT 7 SECONDS AND N
3 FT AT 7 SECONDS.
MON
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT IN THE
AFTERNOON. SEAS 6 TO 9 FT, BUILDING TO 9 TO 13 FT IN THE
AFTERNOON. WAVE DETAIL: E 9 FT AT 10 SECONDS AND E 6 FT AT
7 SECONDS, BECOMING E 13 FT AT 12 SECONDS AND NE 6 FT AT
7 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
MON NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS
10 TO 14 FT. WAVE DETAIL: E 14 FT AT 12 SECONDS AND N 11 FT AT
6 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 12 TO
14 FT. WAVE DETAIL: E 14 FT AT 9 SECONDS AND N 9 FT AT 7 SECONDS.
A CHANCE OF SHOWERS.
TUE NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 45 KT. SEAS
11 TO 15 FT. WAVE DETAIL: NE 14 FT AT 9 SECONDS AND N 8 FT AT
7 SECONDS.
WED THROUGH THU
N WINDS 30 TO 40 KT WITH GUSTS UP TO 45 KT.
SEAS 12 TO 16 FT. A CHANCE OF SHOWERS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS
10 TO 12 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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